321290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:134

約数の個数: 24

約数和(自身を含む): 617220

約数和(自身を除く): 295930

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 361, 445, 722, 890, 1691, 1805, 3382, 3610, 8455, 16910, 32129, 64258, 160645, 321290]

約数ペア:

[(1, 321290), (2, 160645), (5, 64258), (10, 32129), (19, 16910), (38, 8455), (89, 3610), (95, 3382), (178, 1805), (190, 1691), (361, 890), (445, 722)]